Xylidine Ponceau

Property Data
Common name
Suggested name
Other names
 
C.I. number
C.I. name
Class
Ionisation
Solubility aqueous
Solubility ethanol
Absorption maximum
 
Colour
Empirical formula
Formula weight
Xylidine ponceau
Xylidine ponceau
Ponceau de xylidine
Ponceau 2R
16150
Acid red 26
Azo
Acid
Readily
Slightly
499 (Conn), 502 (Gurr)
503, 388 (Aldrich)
Red
C18H14N2O7S2Na2
480.44

Masson specified a dye he called Ponceau de xylidine for a variant of his trichrome staining method. Although this dye has not been absolutely identified as the dye he used, it is almost certainly the one, and is accepted as such by general consensus. Its use is largely confined to Masson's trichrome, where it gives a slight orange shading to the red of the cytoplasmic structures.

 

Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.

Edward Gurr, (1971)
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England.

Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.

 


 

Translate in
Google Translate
Instructions